tamerlan followed and got a green card. dzhokhar attended school outside of boston where he earneded a scholarship. friends and teachers we talked to say they never saw any signs of trouble. >> regular teenager. didn't suspect anything. he was on the wrestling team. he went to parties with other students. he went to the prom. >> a wonderful kid. we were proud of him. he was an outstanding athlete. he was -- there's nothing -- he was never a troublemaker in school. >> their father insisted his sons are innocent. someone framed them. i don't know who exactly did it but someone did. and being cowards, they shot the boy dead. there are cops like this. >> their uncle in maryland says the brothers were "losers." >> being losers. hatred to those who were able to settle themselves. these are the only reasons i can imagine of. anything else, anything else with religion and islam is a fraud. >> in boston the city is relieved the nightmare is over. >> it's a night where i think we'll all rest easy. >> president obama offered his congr